Home / 14,721.66-20,315.73-8,007.18

Finding the Fourth Proportional to 14,721.66, 20,315.73 and 8,007.18

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Solution

The fourth proportional to 14,721.66, 20,315.73 and 8,007.18 is: 11,049.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.66 : 20,315.73 = 8,007.18 : x
  2. Step 2: Convert to fraction form
    14,721.66/20,315.73 = 8,007.18/x
  3. Step 3: Cross multiply
    14,721.66x = 20,315.73 × 8,007.18
  4. Step 4: Simplify right side
    14,721.66x = 162,671,706.94
  5. Step 5: Solve for x
    x = 162,671,706.94/14,721.66
  6. Step 6: Final answer
    x = 11,049.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.